Comment 1 for bug 966254

this bug is very easy to repeat

1.create user xx1

root@(none) 05:10:33>grant all on *.* to xx1@'127.0.0.1' identified by '123';
Query OK, 0 rows affected (0.00 sec)

2. run sh:

$cat flush_pri.sh
#!/bin/sh

for i in {1..100000}; do
mysql -uroot -e 'flush privileges' &
mysql -uxx1 -p123 -h127.0.0.1 -P3320 -e "select user()"
done

3.
$sh flush_pri.sh | grep 'host'
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
ERROR 1130 (HY000): Host '127.0.0.1' is not allowed to connect to this MySQL server
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